PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Arteries have only one layer of cells.
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Connective tissue pushes blood through arteries.
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Arteries are lined with smooth muscle.
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Arteries are lined with a layer of smooth epithelial cells.
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Detailed explanation-1: -The correct option is A True. Squamous Epithelial: Squamous Epithelial is the simple epithelium, and the lumen of blood arteries is lined with a single layer of thin, flattened epithelial cells. They have a slick surface that allows blood cells to flow freely across the artery.
Detailed explanation-2: -The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells.
Detailed explanation-3: -All blood vessels are lined by simple squamous epithelium called the endothelium. Examine the endothelial lining of the large artery and vein. At the level of the light microscope the cytoplasm is difficult to visualize the lining cells, however nuclei can be distinguished.